50550001 has 2 divisors, whose sum is σ = 50550002. Its totient is φ = 50550000.

The previous prime is 50549977. The next prime is 50550011. The reversal of 50550001 is 10005505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47941776 + 2608225 = 6924^2 + 1615^2 .

It is a cyclic number.

It is not a de Polignac number, because 50550001 - 2²³ = 42161393 is a prime.

It is a super-2 number, since 2×50550001² = 5110605202200002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50550011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25275000 + 25275001.

It is an arithmetic number, because the mean of its divisors is an integer number (25275001).

Almost surely, 2^50550001 is an apocalyptic number.

It is an amenable number.

50550001 is a deficient number, since it is larger than the sum of its proper divisors (1).

50550001 is an equidigital number, since it uses as much as digits as its factorization.

50550001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 50550001 is about 7109.8523894663. The cubic root of 50550001 is about 369.7490409240.

Adding to 50550001 its reverse (10005505), we get a palindrome (60555506).

The spelling of 50550001 in words is "fifty million, five hundred fifty thousand, one".